When you don't got time to take your jeans off to have sex, some of the after math stains your denim jeans. Usually appears 20-30 minutes after finishing.

Should I take my jeans off?? I don't want denim cheese later
You can't walk into the club with denim cheese
Your GF will know what you did after seeing that denim cheese
Waiter! I need some club soda for this denim cheese